Properties of Chrysocolla

Chrysocolla is a hydrated copper silicate mineral with the chemical formula (Cu,Al)2H2Si2O5(OH)4·nH2O. It is known for its vibrant blue to greenish-blue color, often resembling the hues of tropical waters.

Image of chrysocolla mineral
Credit: Rob Lavinsky, iRocks.com - CC-BY-SA-3.0, via Wikimedia Commons

The following table provides a comprehensive list of chrysocolla properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).

Note: click on the icon to switch between Metric and Imperial units.

Table of Chrysocolla Properties
Physical Properties
Metric
Chemical Formula(Cu,Al)2H2Si2O5(OH)4·nH2O
Molar Mass328.42 g/mol
Crystal SystemMonoclinic
Mohs Hardness2.5 - 3.5
Density2200 - 2400 kg/m3
ColorGreen, bluish green, blue, blackish blue, or brown
DiaphaneityTranslucent to opaque
LusterVitreous, dull
CleavageNone
FractureSectile
StreakLight green

Note: unless stated otherwise, all values are taken at room temperature (approximately 20°C or 68°F) and 1 atm pressure. (1 atm = 101,325 Pa)

Related Pages
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017.